The effect of selenium on antioxidant system in aquaculture animals

There will be generated some adverse conditions in the process of acquculture farming with the continuous improvement of the intensive degree of modern aquaculture, such as crowding stress, hypoxia, and malnutrition, which will easily lead to oxidative stress. Se is an effective antioxidant, participating and playing an important role in the antioxidant defense system of fish. This paper reviews the physiological functions of selenoproteins in resisting oxidative stress in aquatic animals, the mechanisms of different forms of Se in anti-oxidative stress in aquatic animals and the harmful effects of lower and higher levels of Se in aquaculture. To summarize the application and research progress of Se in oxidative stress in aquatic animals and provide scientific references for its application in anti-oxidative stress in aquaculture.

Automated summary

Adverse conditions, such as crowding stress, hypoxia, and malnutrition, arise during the intensive aquaculture farming, leading to oxidative stress. Selenium plays a crucial role as an effective antioxidant in fish's defense system against oxidative stress. This paper reviews the physiological functions of selenoproteins, mechanisms of different selenium forms, and the harmful effects of low and high selenium levels in aquaculture. It summarizes the application and research progress of selenium in oxidative stress in aquatic animals, providing scientific references for its anti-oxidative stress application in aquaculture.